TY  - BOOK
AU  - Porter,M.W.
AU  - Spiller,Reginald Charles
TI  - The Barker index of crystals: a method for the identification of crystalline substances 
U1  -  548.70838 
PY  - 1951///-
CY  - Cambridge
PB  - W. Heffer
KW  - Crystallography
KW  - Tables
N1  - Library has vol. 1,pt.-I & II; Vol. 1,pt.-I Introduction and tables.-v.1,pt.-II Crystal descriptions
ER  -